Interior is one of the oldest Badlands towns dating back to the 1800s. It is adjacent to one of the entrances to the National Park and is one of the best places to find an RV park with full hook ups.
Interior, South Dakota-Badlands NP
Badlands National Park
Badlands National Park, South Dakota
Last Updated: May 25, 2026
After visiting the pine-covered Black Hills in western South Dakota, we headed east through the grass-covered prairies to the Badlands. French fur traders called the area “les mauvaises terres à traverser,” meaning “the bad lands to traverse.” The Lakota knew it as “Mako Sica,” which likewise means “bad land.”
